gzdoom-gles/src/swrenderer/things/r_sprite.cpp
2017-01-09 14:56:29 +01:00

131 lines
3.4 KiB
C++

//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
#include <stdio.h>
#include <stdlib.h>
#include <algorithm>
#include "p_lnspec.h"
#include "templates.h"
#include "doomdef.h"
#include "m_swap.h"
#include "i_system.h"
#include "w_wad.h"
#include "swrenderer/r_main.h"
#include "swrenderer/scene/r_things.h"
#include "swrenderer/things/r_wallsprite.h"
#include "c_console.h"
#include "c_cvars.h"
#include "c_dispatch.h"
#include "doomstat.h"
#include "v_video.h"
#include "sc_man.h"
#include "s_sound.h"
#include "sbar.h"
#include "gi.h"
#include "r_sky.h"
#include "cmdlib.h"
#include "g_level.h"
#include "d_net.h"
#include "colormatcher.h"
#include "d_netinf.h"
#include "p_effect.h"
#include "swrenderer/scene/r_bsp.h"
#include "swrenderer/scene/r_3dfloors.h"
#include "swrenderer/drawers/r_draw_rgba.h"
#include "swrenderer/drawers/r_draw_pal.h"
#include "v_palette.h"
#include "r_data/r_translate.h"
#include "r_data/colormaps.h"
#include "r_data/voxels.h"
#include "p_local.h"
#include "p_maputl.h"
#include "r_voxel.h"
#include "swrenderer/segments/r_drawsegment.h"
#include "swrenderer/scene/r_portal.h"
#include "swrenderer/things/r_sprite.h"
#include "swrenderer/r_memory.h"
namespace swrenderer
{
void R_DrawVisSprite(vissprite_t *vis, const short *mfloorclip, const short *mceilingclip)
{
fixed_t frac;
FTexture *tex;
int x2;
fixed_t xiscale;
bool ispsprite = (!vis->sector && vis->gpos != FVector3(0, 0, 0));
double spryscale, sprtopscreen;
bool sprflipvert;
if (vis->xscale == 0 || fabs(vis->yscale) < (1.0f / 32000.0f))
{ // scaled to 0; can't see
return;
}
fixed_t centeryfrac = FLOAT2FIXED(CenterY);
R_SetColorMapLight(vis->Style.BaseColormap, 0, vis->Style.ColormapNum << FRACBITS);
bool visible = R_SetPatchStyle(vis->Style.RenderStyle, vis->Style.Alpha, vis->Translation, vis->FillColor);
if (vis->Style.RenderStyle == LegacyRenderStyles[STYLE_Shaded])
{ // For shaded sprites, R_SetPatchStyle sets a dc_colormap to an alpha table, but
// it is the brightest one. We need to get back to the proper light level for
// this sprite.
R_SetColorMapLight(drawerargs::dc_fcolormap, 0, vis->Style.ColormapNum << FRACBITS);
}
if (visible)
{
tex = vis->pic;
spryscale = vis->yscale;
sprflipvert = false;
fixed_t iscale = FLOAT2FIXED(1 / vis->yscale);
frac = vis->startfrac;
xiscale = vis->xiscale;
dc_texturemid = vis->texturemid;
if (vis->renderflags & RF_YFLIP)
{
sprflipvert = true;
spryscale = -spryscale;
iscale = -iscale;
dc_texturemid -= vis->pic->GetHeight();
sprtopscreen = CenterY + dc_texturemid * spryscale;
}
else
{
sprflipvert = false;
sprtopscreen = CenterY - dc_texturemid * spryscale;
}
int x = vis->x1;
x2 = vis->x2;
if (x < x2)
{
while (x < x2)
{
if (ispsprite || !R_ClipSpriteColumnWithPortals(x, vis))
R_DrawMaskedColumn(x, iscale, tex, frac, spryscale, sprtopscreen, sprflipvert, mfloorclip, mceilingclip, false);
x++;
frac += xiscale;
}
}
}
R_FinishSetPatchStyle();
NetUpdate();
}
}